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Konus Burners, Primary, and Vat Pumps

BT Buffer Tank

As the oil is heated and cooled, it will expand and contract
respectively by 7% for every 100° of temperature. As the oil expands,
it will flow into the buffer tank. Some of the heat in the buffer tank will
be dissipated through the walls and to the atmosphere. This permits
the oil to cool before flowing into the level tank. The buffer tank is
located below the level tank. Therefore, the buffer tank will be full of
oil at all times.

CV1 Check Valve

This check valve will permit free flow from the primary pumps to the
inlet of the operating vat pump. When in the normal operating mode,
the No. 2WV valve will be shifted open allowing some of the oil that
exhausts out of the ponds heat exchanger, to flow to the vat pump’s
suction. This check valve will block the oil flow out of valve No. 2WV
to the No. 3WV valve but allow free flow from the primary pumps to
the operating vat pump’s suction.

Page 4 Troubleshooting Thermal Oil Systems